I don't think we'll get any "less human-looking" races because - as well as the programming side of it - it complicates the lore. One of the big plot points of ARR is the divide between "men" and "beastmen", and the visual difference seems to be whether races have a human-like form or not.

ARR has enough slightly-jarring dialogue that doesn't account for race already. Playing through that early part of the story as a beastman race would be very strange for a new player who didn't know what they were getting into.